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Wang T, Ke X, Li J, Wang Y, Guan W, Sha X, Yang C, Zhang TC. Synergistic preparation and application in PCU of α-calcium sulfate hemihydrate whiskers from phosphogypsum and electrolytic manganese residue. Sci Rep 2024; 14:6260. [PMID: 38491074 PMCID: PMC10943202 DOI: 10.1038/s41598-024-56817-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024] Open
Abstract
The α-calcium sulfate hemihydrate whiskers (α-CSHWs) were first prepared using phosphogypsum (PG) and electrolytic manganese residue (EMR) as raw materials for coating urea, demonstrating excellent controlled-release properties. The effects of different reaction conditions on α-CSHWs, achieved by optimizing the reaction time, the concentrations of NH4+, Mn2+, and other factors, were discussed. Results showed that when the EMR content was 25 wt%, the reaction temperature was 100 °C, and the reaction time was 3 h, α-CSHWs with a length-to-diameter ratio of 39 were obtained. Through experiments and density functional theory (DFT), the mechanism of α-CSHWs preparation was elucidated. The results show that the addition of EMR reduces the content of impurity ions PO43- and F- in PG while introducing NH4+ and Mn2+. Interestingly, both NH4+ and Mn2+ can reduce the nucleation time of α-CSHWs, while PO43-, Mn2+, and F- are more likely to adsorb on the (0 0 6) crystal plane of α-CSHWs, NH4+ readily adsorbs on the (4 0 0) crystal plane. The controlled-release performance of modified α-CSHWs incorporated into polyurethane-coated urea (PCU) was investigated, and it was found that the addition of Mα significantly prolonged the nutrient release period, with the period extending up to 116 days for coatings of 5wt% and above. This work not only enhances the efficiency of PG and EMR utilization but also serves as a reference for the straightforward synthesis and application of α-CSHWs.
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Affiliation(s)
- Ting Wang
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Xuan Ke
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Jia Li
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China.
| | - Ying Wang
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Weiwei Guan
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Xia Sha
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Chenjing Yang
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Education, Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, China
| | - Tian C Zhang
- Civil & Environmental Engineering Department, College of Engineering, University of Nebraska-Lincoln, Omaha, NE, 68182, USA
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Feng F, Cui YX, Hu YQ, Hu S, Zhang AD. Mussel-inspired dynamic facet-selective capping approach to highly uniform α-calcium sulfate hemihydrate crystals. RSC Adv 2023; 13:15342-15346. [PMID: 37223649 PMCID: PMC10201340 DOI: 10.1039/d3ra00835e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/30/2023] [Indexed: 05/25/2023] Open
Abstract
We report herein a dynamic facet-selective capping (dFSC) strategy for α-calcium sulfate hemihydrate crystal growth from dihydrate gypsum in the presence of a catechol-derived PEI capping agent (DPA-PEI) with inspiration by the biomineralization process of mussel. The crystal shape is controllable and varies from long and pyramid-tipped prisms to thin hexagonal plate. The highly uniform truncated crystals have extremely high compression and bending strengths after hydration molding.
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Affiliation(s)
- Fu Feng
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Yu-Xin Cui
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Yong-Qi Hu
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Sheng Hu
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Ai-Dong Zhang
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University Wuhan 430079 China
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Zhou Y, Zheng G, Cen S, Liu R, Tao C. Leaching of phosphate ores with lower dissolution of metallic impurities: the dual role of sodium oleate †. RSC Adv 2023; 13:10600-10609. [PMID: 37021098 PMCID: PMC10069396 DOI: 10.1039/d3ra00897e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
In this work, we report the use of surfactants to improve the performance of phosphate ore leaching while reducing the concentration of metallic impurities in the leaching solution. Based on the zeta potential analysis, sodium oleate (SOL) is determined as a suitable surfactant because it can change interfacial properties and improve ionic diffusion. This is experimentally demonstrated by the high leaching performance. After that, the reaction conditions on the leaching performance are systematically investigated. Under the optimal experimental conditions (SOL concentration of 10 mg L−1, sulfuric acid concentration of 1.72 mol L−1, leaching temperature of 75 °C, and leaching time of 180 min), a high phosphorus leaching efficiency of 99.51% is achieved. Meanwhile, the leaching solution presents a lower content of metallic impurities. Further measurements performed on the leaching residues indicate that the additive SOL can promote the growth of platy crystals and facilitate PO leaching. Overall, this work demonstrates that the SOL-assisted leaching method allows for highly-efficient utilization of PO and high-purity phosphoric acid production. A suitable surfactant, sodium oleate, is used to improve the phosphorus leaching efficiency while reducing the dissolution of metallic impurities, allowing for highly-efficient utilization of phosphate ores and high-purity phosphoric acid production.![]()
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Affiliation(s)
- Yuhe Zhou
- College of Chemistry and Chemical Engineering, Chongqing UniversityChongqing 400044China
| | - Guocan Zheng
- College of Chemistry and Chemical Engineering, Chongqing UniversityChongqing 400044China
- Analytical and Testing Center, Chongqing UniversityChongqing 400044China
| | - Shaodou Cen
- College of Chemistry and Chemical Engineering, Chongqing UniversityChongqing 400044China
| | - Renlong Liu
- College of Chemistry and Chemical Engineering, Chongqing UniversityChongqing 400044China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing UniversityChongqing 400044China
| | - Changyuan Tao
- College of Chemistry and Chemical Engineering, Chongqing UniversityChongqing 400044China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing UniversityChongqing 400044China
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Zhang G, Cao D, Wang X, Guo S, Yang Z, Cui P, Wang Q, Dou Y, Cheng S, Shen H. α-calcium sulfate hemihydrate with a 3D hierarchical straw-sheaf morphology for use as a remove Pb 2+ adsorbent. CHEMOSPHERE 2022; 287:132025. [PMID: 34461332 DOI: 10.1016/j.chemosphere.2021.132025] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Novel three-dimensional hierarchical α-calcium sulfate hemihydrate with a straw-sheaf morphology (3D α-HH straw-sheaves) are synthesized successfully in glycerin aqueous solution by a simple one-pot method, using as an efficient adsorbent for Pb2+ removal from water. The 3D straw-sheaf morphology, that closely depends on the glycerin/water volume ratio (VGly/VH2O), can be accurately fabricated only when VGly/VH2O is not lower than 3/1. 3D α-HH straw-sheaves are generated via multistep-splitting growth coupled with self-assembly. The obtained 3D α-HH straw-sheaves are further used as an adsorbent to remove Pb2+ from water, exhibiting excellent Pb2+ removal performance with an equilibrium adsorption capacity of 79.19 mgPbgα-HH-1 and removal efficiency of 98.98%, that both higher than those of plate- and columnar-like α-HH. Moreover, the experimental adsorption data for the 3D α-HH straw-sheaves is well fitted with pseudo-second-order kinetic model, and the adsorption isotherm is in good agreement with Langmuir model. The Pb2+ adsorption mechanism is thought to be a chemical adsorption process enforced by chemical bonding and ion exchange. This work demonstrates that 3D α-HH straw-sheaves are highly promising in removing Pb2+ from wastewater, thereby broadening the research field for the practical application of gypsum-based materials.
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Affiliation(s)
- Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Dongjie Cao
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Xianshun Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Shiyu Guo
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Zhenzhen Yang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China.
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China.
| | - Qi Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Yan Dou
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Sheng Cheng
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, PR China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd, Tonggang Road 8, Tongling, 244021, PR China
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Zhang G, Sun X, Cui P, Shen H. Self-Symmetrical 3D Hierarchical α-Calcium Sulfate Hemihydrate Twin-Flowers Composed of Microplates as a Renewable Material for Water Separation from Water-in-Oil Emulsion. Inorg Chem 2021; 60:2188-2194. [PMID: 33512992 DOI: 10.1021/acs.inorgchem.0c02815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel three-dimensional hierarchical α-calcium sulfate hemihydrate twin-flowers with a self-symmetrical structure (3D α-HH HTFs) are synthesized successfully assisted by trisodium citrate (TSC). The morphology of α-HH is closely dependent on TSC, and with increasing TSC concentration from 0 to 15 mM, the morphology gradually evolves from a long column to rod, hexagonal plate, twin-flower-like, and eventually microgranule. 3D α-HH HTFs are formed via heterogeneous nucleation coupled with Ostwald ripening. The 3D α-HH HTFs are further used as an immobilized water material to separate water from a surfactant-stabilized water-in-oil emulsion, and exhibit excellent separation performance with a separation efficiency of 99.31 wt % and immobilization efficiency of 93.03 wt %. Impressively, the separated solid after water separation can be regenerated into 3D α-HH HTFs, which retain the high separation performance of the original 3D α-HH HTFs. This work demonstrates that 3D α-HH HTFs are highly promising in purifying oil with undesired water contamination.
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Affiliation(s)
- Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China.,Anhui Liuguo Chemical Co. Ltd., Tonggang Road 8, Tongling 244021, PR China
| | - Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd., Tonggang Road 8, Tongling 244021, PR China
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Shu J, Li B, Chen M, Sun D, Wei L, Wang Y, Wang J. An innovative method for manganese (Mn 2+) and ammonia nitrogen (NH 4+-N) stabilization/solidification in electrolytic manganese residue by basic burning raw material. CHEMOSPHERE 2020; 253:126896. [PMID: 32402467 DOI: 10.1016/j.chemosphere.2020.126896] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
High concentrations of manganese (Mn2+) and ammonia nitrogen (NH4+-N) in electrolytic manganese residue (EMR) have seriously hindered the sustainable development of electrolytic manganese industry. In this study, an innovative basic burning raw material (BRM) was used to stabilize/solidify Mn2+ and NH4+-N in EMR. The characteristics of EMR and BRM, stabilize mechanism of NH4+-N and Mn2+, and leaching test were investigated. The concentrations of NH4+-N and Mn2+ were 12.8 mg/L and 0.1 mg/L, respectively, when the solid liquid ratio was 1.5:1, and the mass ratio of EMR and BRM was 100:10, at the temperature of 20 °C reacting for 12 h Mn2+ was mostly solidified as bustamite ((Mn,Ca)Si2O6), groutite (MnOOH) and ramsdellite (MnO2). NH4+-N was mostly recycled by (NH4)2SO4 and (NH4)3H(SO4)2. Leaching test results indicated that the concentrations of heavy metals were within the permitted level for the integrated wastewater discharge standard (GB8978-1996). Economic evaluation revealed that the cost of EMR treatment was $ 10.15/t by BRM. This study provided a new research idea for EMR harmless disposal.
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Affiliation(s)
- Jiancheng Shu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Bing Li
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Mengjun Chen
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Danyang Sun
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Liang Wei
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yao Wang
- Guizhou Building Materials Quality Supervision Testing Center, Guiyang, 550000, China
| | - Jianyi Wang
- Guizhou Institute of Building Materials Scientific Research and Design Limited Company, Guiyang, 550007, China
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Sun X, Wang X, Zhang G, Cui P, Shen H. Effect of Cu 2+ on the nucleation kinetics and crystallization of rod-shaped CaSO 4·2H 2O in aqueous solution. RSC Adv 2019; 9:36020-36026. [PMID: 35540598 PMCID: PMC9074933 DOI: 10.1039/c9ra07640a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/29/2019] [Indexed: 01/05/2023] Open
Abstract
In this study, a simple and efficient strategy is developed to synthesize rod-like CaSO4·2H2O (DH) crystals with tunable aspect ratio in aqueous solution using Cu2+ as modifier. The aspect ratio and length of the DH crystals are effectively reduced to 5.7 : 1 and about 35 μm in the presence of Cu2+, respectively. The interfacial tension value (γ) in the aqueous solution is improved significantly with the assistance of Cu2+, yet the nucleation rate (J) of the DH crystal is decreased sharply. The interfacial tension value (γ) in the aqueous solution is improved and the nucleation rate (J) of the DH crystal is drastically decreased due to the introduction of Cu2+, leading to the induction time of the DH crystallization being extended from 4 min to 25 min. The diversification of morphology for the DH crystals is incited by the changes of nucleation kinetics and Cu2+ incorporated into the crystal lattice, affecting the crystal growth habit, and finally controlling the growth of DH crystals in aqueous solution. The induction time of DH crystals is extended by the introduction of Cu2+.![]()
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Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Xianshun Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China .,School of Materials Science and Engineering, Hefei University of Technology Hefei 230009 China.,Anhui Liuguo Chemical Co. Ltd Tongling 244021 China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd Tongling 244021 China
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