{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/79890"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/79890","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"De novo Synthesis of Iron/Carbon Composites from Waste Precursors for Hexavalent Chromium Removal","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Cui, Yanbin; 0000-0003-0708-1029"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Atkinson, John","Civil, Structural and Environmental Engineering"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-07-30T15:10:47Z","date_published":"2019-07-30T15:10:47Z","updated_at":"2026-07-27T19:05:19Z","subjects":["environmental engineering"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/79890","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Atkinson, John","Civil, Structural and Environmental Engineering"]},{"key":"dc:creator","label":"Author","values":["Cui, Yanbin; 0000-0003-0708-1029"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-07-30T15:10:47Z","2019","2019-05-05 15:11:02"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["environmental engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/79890"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","Cr(VI) is an important raw material that is used and released from various industrial sectors, such as electroplating, leather tanning, and paint production. This heavy metal is highly toxic to humans and ecosystems due to its oxidizing and mutagenic properties. Among various Cr(VI) remediation materials, iron/carbon (Fe/C) nanocomposites can efficiently remove Cr(VI) due to synergistic adsorption and reduction, and its magnetic property facilitates material recovery for regeneration. While various Fe/C preparation methods are available, concerns exist related to cost-effectiveness and scalability associated with the precursor, process, and energy demand. Conventionally, Fe/C composites for Cr(VI) removal are prepared by impregnating an iron precursor solution onto porous carbon, followed by calcination and pyrolysis. However, this method is slow, non-continuous, and labor intensive, requiring a series of discrete steps that each requires energy input. Therefore, an overarching goal for this study is to develop procedures that allow for efficient and scalable production of Fe/C nanocomposites for Cr(VI) removal. This study applies de novo synthesis strategies for material production. For Fe/C synthesis, de novo indicates that processing begins with the raw precursors, combining carbonization, activation, functionalization, and metal impregnation into a single-step process. Reported single-step processes include one-pot thermal treatment (batch) and spray pyrolysis (continuous). For the batch one-pot method, a solution/slurry containing carbon and iron precursors is heated in an inert gas to form carbon products with well-dispersed iron nanoparticles. For the continuous ultrasonic spray pyrolysis (USP) method, a precursor solution is aerosolized and pyrolyzed to decompose metal and carbon precursors, generating carbon spheres with well-dispersed iron nanoparticles."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["De novo Synthesis of Iron/Carbon Composites from Waste Precursors for Hexavalent Chromium Removal"]}]}],"canonical_facts":{"dc:contributor":["Atkinson, John","Civil, Structural and Environmental Engineering"],"dc:creator":["Cui, Yanbin; 0000-0003-0708-1029"],"dc:date":["2019-07-30T15:10:47Z","2019","2019-05-05 15:11:02"],"dc:description":["Ph.D.","Cr(VI) is an important raw material that is used and released from various industrial sectors, such as electroplating, leather tanning, and paint production. This heavy metal is highly toxic to humans and ecosystems due to its oxidizing and mutagenic properties. Among various Cr(VI) remediation materials, iron/carbon (Fe/C) nanocomposites can efficiently remove Cr(VI) due to synergistic adsorption and reduction, and its magnetic property facilitates material recovery for regeneration. While various Fe/C preparation methods are available, concerns exist related to cost-effectiveness and scalability associated with the precursor, process, and energy demand. Conventionally, Fe/C composites for Cr(VI) removal are prepared by impregnating an iron precursor solution onto porous carbon, followed by calcination and pyrolysis. However, this method is slow, non-continuous, and labor intensive, requiring a series of discrete steps that each requires energy input. Therefore, an overarching goal for this study is to develop procedures that allow for efficient and scalable production of Fe/C nanocomposites for Cr(VI) removal. This study applies de novo synthesis strategies for material production. For Fe/C synthesis, de novo indicates that processing begins with the raw precursors, combining carbonization, activation, functionalization, and metal impregnation into a single-step process. Reported single-step processes include one-pot thermal treatment (batch) and spray pyrolysis (continuous). For the batch one-pot method, a solution/slurry containing carbon and iron precursors is heated in an inert gas to form carbon products with well-dispersed iron nanoparticles. For the continuous ultrasonic spray pyrolysis (USP) method, a precursor solution is aerosolized and pyrolyzed to decompose metal and carbon precursors, generating carbon spheres with well-dispersed iron nanoparticles."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/79890"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["environmental engineering"],"dc:title":["De novo Synthesis of Iron/Carbon Composites from Waste Precursors for Hexavalent Chromium Removal"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:19Z"}