Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2081903575', 'doi': 'https://doi.org/10.1080/19443994.2014.941298', 'title': 'Reduction of hexavalent chromium with polyphenol-coated nano zero-valent iron: column studies', 'display_name': 'Reduction of hexavalent chromium with polyphenol-coated nano zero-valent iron: column studies', 'publication_year': 2014, 'publication_date': '2014-07-25', 'ids': {'openalex': 'https://openalex.org/W2081903575', 'doi': 'https://doi.org/10.1080/19443994.2014.941298', 'mag': '2081903575'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1080/19443994.2014.941298', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S124203677', 'display_name': 'Desalination and Water Treatment', 'issn_l': '1944-3986', 'issn': ['1944-3986', '1944-3994'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'hybrid', 'oa_url': 'https://doi.org/10.1080/19443994.2014.941298', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5055294940', 'display_name': 'Christiana Mystrioti', 'orcid': 'https://orcid.org/0000-0002-6436-0262'}, 'institutions': [{'id': 'https://openalex.org/I174458059', 'display_name': 'National Technical University of Athens', 'ror': 'https://ror.org/03cx6bg69', 'country_code': 'GR', 'type': 'education', 'lineage': ['https://openalex.org/I174458059']}], 'countries': ['GR'], 'is_corresponding': True, 'raw_author_name': 'C. Mystrioti', 'raw_affiliation_strings': ['Fax: +30 210 7722129', 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298'], 'affiliations': [{'raw_affiliation_string': 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298', 'institution_ids': ['https://openalex.org/I174458059']}, {'raw_affiliation_string': 'Fax: +30 210 7722129', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5072617594', 'display_name': 'Anthimos Xenidis', 'orcid': 'https://orcid.org/0000-0003-2699-7972'}, 'institutions': [{'id': 'https://openalex.org/I174458059', 'display_name': 'National Technical University of Athens', 'ror': 'https://ror.org/03cx6bg69', 'country_code': 'GR', 'type': 'education', 'lineage': ['https://openalex.org/I174458059']}], 'countries': ['GR'], 'is_corresponding': True, 'raw_author_name': 'A. Xenidis', 'raw_affiliation_strings': ['Fax: +30 210 7722129', 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298'], 'affiliations': [{'raw_affiliation_string': 'Fax: +30 210 7722129', 'institution_ids': []}, {'raw_affiliation_string': 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298', 'institution_ids': ['https://openalex.org/I174458059']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5058895657', 'display_name': 'Nymphodora Papassiopi', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I174458059', 'display_name': 'National Technical University of Athens', 'ror': 'https://ror.org/03cx6bg69', 'country_code': 'GR', 'type': 'education', 'lineage': ['https://openalex.org/I174458059']}], 'countries': ['GR'], 'is_corresponding': True, 'raw_author_name': 'N. Papassiopi', 'raw_affiliation_strings': ['Fax: +30 210 7722129', 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298'], 'affiliations': [{'raw_affiliation_string': 'School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens 15780, Greece, Tel. +30 2107724054, +30 2107722300, +30 2107722298', 'institution_ids': ['https://openalex.org/I174458059']}, {'raw_affiliation_string': 'Fax: +30 210 7722129', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5055294940', 'https://openalex.org/A5072617594', 'https://openalex.org/A5058895657'], 'corresponding_institution_ids': ['https://openalex.org/I174458059', 'https://openalex.org/I174458059', 'https://openalex.org/I174458059'], 'apc_list': None, 'apc_paid': None, 'fwci': 1.179, 'has_fulltext': False, 'cited_by_count': 22, 'citation_normalized_percentile': {'value': 0.891509, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 91, 'max': 92}, 'biblio': {'volume': '56', 'issue': '5', 'first_page': '1162', 'last_page': '1170'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12078', 'display_name': 'Environmental remediation with nanomaterials', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12078', 'display_name': 'Environmental remediation with nanomaterials', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T13046', 'display_name': 'Electrokinetic Soil Remediation Techniques', 'score': 0.9747, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11972', 'display_name': 'Chromium effects and bioremediation', 'score': 0.9337, 'subfield': {'id': 'https://openalex.org/subfields/2307', 'display_name': 'Health, Toxicology and Mutagenesis'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/hexavalent-chromium', 'display_name': 'Hexavalent Chromium', 'score': 0.97044086}, {'id': 'https://openalex.org/keywords/zerovalent-iron', 'display_name': 'Zerovalent iron', 'score': 0.9377041}], 'concepts': [{'id': 'https://openalex.org/C2781468121', 'wikidata': 'https://www.wikidata.org/wiki/Q2660666', 'display_name': 'Hexavalent chromium', 'level': 3, 'score': 0.97044086}, {'id': 'https://openalex.org/C40472508', 'wikidata': 'https://www.wikidata.org/wiki/Q8069649', 'display_name': 'Zerovalent iron', 'level': 3, 'score': 0.9377041}, {'id': 'https://openalex.org/C522964758', 'wikidata': 'https://www.wikidata.org/wiki/Q2019586', 'display_name': 'Environmental remediation', 'level': 3, 'score': 0.70915174}, {'id': 'https://openalex.org/C511782168', 'wikidata': 'https://www.wikidata.org/wiki/Q725', 'display_name': 'Chromium', 'level': 2, 'score': 0.704348}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.660868}, {'id': 'https://openalex.org/C13965031', 'wikidata': 'https://www.wikidata.org/wiki/Q243545', 'display_name': 'Nuclear chemistry', 'level': 1, 'score': 0.4696647}, {'id': 'https://openalex.org/C2780534640', 'wikidata': 'https://www.wikidata.org/wiki/Q3233795', 'display_name': 'Ferric', 'level': 2, 'score': 0.4641228}, {'id': 'https://openalex.org/C184651966', 'wikidata': 'https://www.wikidata.org/wiki/Q906356', 'display_name': 'Aqueous solution', 'level': 2, 'score': 0.42534786}, {'id': 'https://openalex.org/C155672457', 'wikidata': 'https://www.wikidata.org/wiki/Q61231', 'display_name': 'Nanoparticle', 'level': 2, 'score': 0.41970417}, {'id': 'https://openalex.org/C179104552', 'wikidata': 'https://www.wikidata.org/wiki/Q11165', 'display_name': 'Inorganic chemistry', 'level': 1, 'score': 0.2883223}, {'id': 'https://openalex.org/C192562407', 'wikidata': 'https://www.wikidata.org/wiki/Q228736', 'display_name': 'Materials science', 'level': 0, 'score': 0.22576365}, {'id': 'https://openalex.org/C112570922', 'wikidata': 'https://www.wikidata.org/wiki/Q60528603', 'display_name': 'Contamination', 'level': 2, 'score': 0.21771654}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.13445762}, {'id': 'https://openalex.org/C150394285', 'wikidata': 'https://www.wikidata.org/wiki/Q180254', 'display_name': 'Adsorption', 'level': 2, 'score': 0.10350919}, {'id': 'https://openalex.org/C171250308', 'wikidata': 'https://www.wikidata.org/wiki/Q11468', 'display_name': 'Nanotechnology', 'level': 1, 'score': 0.098573655}, {'id': 'https://openalex.org/C18903297', 'wikidata': 'https://www.wikidata.org/wiki/Q7150', 'display_name': 'Ecology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1080/19443994.2014.941298', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S124203677', 'display_name': 'Desalination and Water Treatment', 'issn_l': '1944-3986', 'issn': ['1944-3986', '1944-3994'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1080/19443994.2014.941298', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S124203677', 'display_name': 'Desalination and Water Treatment', 'issn_l': '1944-3986', 'issn': ['1944-3986', '1944-3994'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'display_name': 'Life on land', 'id': 'https://metadata.un.org/sdg/15', 'score': 0.62}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 25, 'referenced_works': ['https://openalex.org/W1642724957', 'https://openalex.org/W1966948893', 'https://openalex.org/W1968989937', 'https://openalex.org/W1976358269', 'https://openalex.org/W1979529649', 'https://openalex.org/W1981769269', 'https://openalex.org/W1986363891', 'https://openalex.org/W2001886539', 'https://openalex.org/W2010326083', 'https://openalex.org/W2012488592', 'https://openalex.org/W2030671184', 'https://openalex.org/W2036783716', 'https://openalex.org/W2059582758', 'https://openalex.org/W2067772905', 'https://openalex.org/W2071265020', 'https://openalex.org/W2074435420', 'https://openalex.org/W2080073199', 'https://openalex.org/W2096897464', 'https://openalex.org/W2099148329', 'https://openalex.org/W2117326659', 'https://openalex.org/W2156063593', 'https://openalex.org/W2322747470', 'https://openalex.org/W2326594820', 'https://openalex.org/W2341175198', 'https://openalex.org/W4285719527'], 'related_works': ['https://openalex.org/W4360978408', 'https://openalex.org/W4220846177', 'https://openalex.org/W3048558556', 'https://openalex.org/W2771849868', 'https://openalex.org/W2769578144', 'https://openalex.org/W2503107062', 'https://openalex.org/W2384476850', 'https://openalex.org/W2366965325', 'https://openalex.org/W2222477429', 'https://openalex.org/W2081903575'], 'abstract_inverted_index': {'Nano': [0], 'zero-valent': [1], 'iron': [2, 50], '(nZVI)': [3], 'is': [4, 330], 'considered': [5], 'as': [6], 'a': [7, 48, 138, 235, 287, 294, 302], 'highly': [8], 'efficient': [9], 'reductant': [10], 'with': [11, 47, 91, 114, 127, 293], 'wide': [12], 'applicability': [13], 'in': [14, 53, 159, 167, 184, 213, 217, 231, 241, 250, 268, 274, 290, 307], 'the': [15, 22, 54, 75, 92, 168, 180, 185, 208, 224, 232, 245, 251, 255, 279, 291, 324], 'remediation': [16, 85], 'of': [17, 87, 130, 140, 146, 156, 176, 202, 226, 237, 248, 260, 297], 'contaminated': [18], 'sites,': [19], 'due': [20], 'to': [21, 65, 243, 265, 309, 317, 333], 'small': [23], 'particle': [24], 'size,': [25], 'large': [26], 'specific': [27], 'surface': [28], 'area,': [29], 'and': [30, 69, 78, 119, 133, 199, 216, 271], 'high': [31, 151], 'reactivity.': [32], 'In': [33], 'this': [34, 211, 222], 'study,': [35], 'nZVI': [36], 'was': [37, 101, 148, 164, 194, 229, 263, 284], 'synthesized': [38], 'by': [39, 103, 171, 207], 'mixing': [40], 'Camellia': [41], 'Sinensis': [42], 'extract': [43, 56], '(green': [44], 'tea,': [45], 'GT)': [46], 'ferric': [49], 'solution.': [51, 161], 'Polyphenols': [52], 'GT': [55], 'act': [57], 'as:': [58], '(a)': [59], 'strong': [60], 'reductants,': [61], 'reducing': [62], 'thus': [63], 'Fe(III)': [64], 'its': [66], 'elemental': [67], 'state': [68], '(b)': [70], 'capping': [71], 'agents': [72], 'that': [73, 196, 286, 326], 'stabilize': [74], 'Fe(0)': [76], 'nanoparticles': [77, 204], 'inhibit': [79], 'their': [80], 'potential': [81, 86], 'rapid': [82], 'oxidation.': [83], 'The': [84, 106, 123, 143, 162, 257], 'ZVI': [88, 203], 'nanoparticles,': [89], 'produced': [90], 'Green': [93], 'Tea': [94], 'method': [95], '(GT-nZVI),': [96], 'for': [97, 150], 'hexavalent': [98, 157, 227], 'chromium': [99, 158, 228], '(Cr(VI))': [100], 'evaluated': [102], 'column': [104, 170, 182, 187, 214, 218, 269, 275], 'tests.': [105], 'tests': [107], 'were': [108, 125, 191, 205], 'carried': [109], 'out': [110], 'using': [111], 'polyethylene': [112], 'columns,': [113], '2.63': [115], 'cm': [116, 121, 338], 'internal': [117], 'diameter': [118], '~10': [120], 'length.': [122], 'columns': [124, 233], 'filled': [126], '65': [128], 'g': [129], 'natural': [131], 'soil': [132, 163, 209], 'pure': [134], 'silica': [135], 'sand': [136], 'at': [137, 234], 'ratio': [139], '50%': [141], 'w/w.': [142], 'reductive': [144], 'capacity': [145], 'GT-nZVI': [147, 177, 253], 'examined': [149], '(5': [152], 'mg': [153, 201, 267, 273, 315], 'L−1)': [154], 'concentration': [155], 'aqueous': [160], 'initially': [165], 'treated': [166], 'first': [169], 'introducing': [172], '11': [173], 'pore': [174, 189], 'volumes': [175, 190], 'suspension': [178], 'through': [179], 'packed': [181], 'while': [183], 'second': [186], '24': [188], 'introduced.': [192], 'It': [193], 'found': [195], 'about': [197], '210': [198], '420': [200], 'retained': [206], 'during': [210], 'stage': [212], 'I': [215, 270], 'II,': [219], 'respectively.': [220], 'After': [221], 'step,': [223], 'solution': [225], 'introduced': [230], 'flowrate': [236], '1.2': [238], 'mL': [239], 'min−1,': [240], 'order': [242, 308], 'determine': [244], 'breakthrough': [246], 'curve': [247], 'Cr(VI)': [249, 262, 311], 'immobilized': [252], 'on': [254, 278], 'soil.': [256], 'total': [258], 'amount': [259], 'reduced': [261], 'equal': [264, 332], '17': [266], '33': [272], 'II.': [276], 'Based': [277], 'available': [280], 'experimental': [281], 'data,': [282], 'it': [283], 'estimated': [285], 'GT-nZVI-treated': [288], 'zone': [289], 'subsurface,': [292], 'length': [295], '(L)': [296], '0.75': [298], 'm,': [299], 'could': [300], 'provide': [301], 'sufficiently': [303], 'long': [304], 'contact': [305], 'time': [306], 'reduce': [310], 'levels': [312], 'from': [313], '5': [314, 320], 'L−1': [316], 'less': [318, 335], 'than': [319, 336], 'μg': [321], 'L−1,': [322], 'under': [323], 'condition': [325], 'groundwater': [327], 'Darcy': [328], 'velocity': [329], 'either': [331], 'or': [334], '0.1': [337], 'min−1.': [339]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2081903575', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 1}, {'year': 2019, 'cited_by_count': 4}, {'year': 2018, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 2}], 'updated_date': '2025-01-12T20:11:30.334979', 'created_date': '2016-06-24'}