Article
Materials Science, Multidisciplinary
Lu Yang, Yong Liu, Pengfei Tan, Ying Lu, Qingguo Ding, Jun Pan
Summary: An innovative g-C3N4-TiO2@CsPbBr3 composite catalyst was prepared and demonstrated to have enhanced photocatalytic performance for tetracycline hydrochloride degradation. The catalyst exhibited increased light-harvesting capability and more efficient charge carrier separation, leading to a degradation rate of 75.6% in 120 min, which was 2.30 and 2.03 times higher than TiO2@CPB and pure g-C3N4, respectively. The study also identified O-2(-) as the dominant active specie in the photocatalytic degradation process and proposed a possible photocatalytic mechanism.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yuan Li, Huigui Zhang, Wenyao Qian, Yong Xia, Dongmei Li, Zhiqiang Guo
Summary: A new TiO2/g-C3N4 S-scheme heterojunction photocatalyst with excellent optical absorption ability, effective photogenerated electron-hole pair separation, and high photocatalytic degradation activity was constructed in this study.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Libo Wang, Xingang Fei, Liuyang Zhang, Jiaguo Yu, Bei Cheng, Yuhua Ma
Summary: In this study, a photocatalyst with high light utilization was designed, and efficient CO2 reduction was achieved through biomimetic plant structure and heterojunction construction. It has great potential for practical applications and industrial utilization.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jiadian Wang, Min Wang, Jin Kang, Yiwu Tang, Jiayun Liu, Siyan Li, Zhenqi Xu, Pengpeng Tang
Summary: In this study, a CN/FeWO4 Z-scheme hetero-junction photocatalyst was prepared to enhance the degradation of tetracycline (TC) under visible light irradiation. Peroxymonosulfate (PMS) was used to promote the photoinduced carriers separation. The results showed that the combination of photocatalysis and PMS system significantly enhanced TC removal. Reactive oxygen species (ROSs) were responsible for TC degradation. The as-fabricated CN/FeWO4 demonstrated satisfactory stability, reusability, and good ant-interference ability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jin Chen, Jie Yan, Xiaofeng Yang, Tai Yang, Yuzhao Ma, Yanjun Li, Meidan Que
Summary: The construction of heterojunction photocatalysts is an effective strategy to address antibiotic pollution. In this study, a dual Z-scheme heterojunction BiOBr/Bi2O2.33/g-C3N4 was synthesized and exhibited exceptional visible light photocatalytic performance. The well-designed heterojunction broadened the visible light absorption region and enhanced the migration and separation of photogenerated electron-hole pairs, resulting in high degradation efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Jialin Tang, Jiajia Wang, Lin Tang, Chengyang Feng, Xu Zhu, Yuyang Yi, Haopeng Feng, Jiangfang Yu, Xiaoya Ren
Summary: The floating porous g-C3N4 (FPCN) synthesized via a one-pot method shows excellent photocatalytic performance, outperforming traditional powder catalysts in terms of efficiency in removing tetracycline. The 3D interconnected network and enhanced light absorption of FPCN contribute to its superior performance, offering a promising solution to the recycling issue of powder catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Razieh Nejat, Zohreh Najminejad, Farnaz Fazlali, Somaye Shahraki, Zeynab Khazaee
Summary: In this study, the novel photocatalyst H3PW4Mo8O40/g-C3N4 was used for the oxidation of alcohols and sulfides, showing higher photocatalytic activity under visible light irradiation. With the variation of molybdenum substitution contents, PW4Mo8 demonstrated the best yield under visible-light irradiation, attributed to its redox and acid properties. This study provides insights for the preparation of efficient photocatalysts for the oxidation of organic compounds.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Linsen Huang, Deyu Bao, Junhua Li, Xiaoqing Jiang, Xiaosong Sun
Summary: The synthesized Au-g-C3N4-ZnO photocatalyst shows high efficiency in degrading tetracycline, with excellent light absorption capacity and stability. The degradation pathways were explored and a novel photocatalytic mechanism was proposed based on band structure, surface plasmon resonance effect, oxygen vacancies, charge transfer behaviors and active species generation.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Akash Balakrishnan, Mahendra Chinthala
Summary: In this study, oxalic acid-induced chemically functionalized graphitic carbon nitride (OCN) was prepared using a one-pot calcination method. The OCN exhibited a highly porous structure with enhanced surface area and abundant amino groups, resulting in a maximum tetracycline removal of 92% within 90 min of visible light illumination. The increased presence of amino groups and enhanced visible light absorption were attributed to the exceptional photocatalytic efficacy of the functionalized OCN.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
M. Vijayan, Velu Manikandan, Chellakannu Rajkumar, Ashraf Atef Hatamleh, Bassam Khalid Alnafisi, G. Easwaran, Xinghui Liu, K. Sivakumar, Haekyoung Kim
Summary: In recent years, the use of dyes and nanoparticles has increased significantly, posing a serious health risk to ecosystems. This study fabricated TiO2 and g-C3N4 nanosheets through co-precipitation and thermal polymerization techniques, respectively. The g-CN-TiO2 nanocomposite with different weight percentages exhibited enhanced photocatalytic performance against methylene blue (MB) dye under UV-visible light illumination. The optimized g-CN-TiO2 nanocomposite (3:1) showed the highest catalytic efficiency due to the low amount of TiO2 nanoparticles deposited on g-CN nanosheets and the development of a Z-scheme system between TiO2 and g-CN.
Article
Acoustics
Jingjing Zhang, Yue Zhao, Kai Zhang, Amir Zada, Kezhen Qi
Summary: Different mass percent ratios of CoFe2O4 coupled g-C3N4 nanocomposites were prepared through a hydrothermal process for the sonocatalytic degradation of tetracycline hydrochloride in aqueous media. The best degradation efficiency of 26.71% in 10 minutes was achieved when the amount of CoFe2O4 was 25% in the nanocomposite. This enhanced efficiency was attributed to the accelerated charge transfer and separation through the heterojunctional interface. The results of this work provide an easy approach for fabricating highly efficient low-cost magnetic sonocatalysts for the eradication of hazardous materials in the environment.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Xiaoqin Sun, Tianyu Wang, Sining Yun
Summary: A series of S-scheme C3N4@Bim+1Fem-3Ti3O3m+3 (m = 4, 5, 6) heterojunctions with two-dimensional structures were synthesized, which exhibited excellent photocatalytic tetracycline degradation under visible light. The enhanced performance was attributed to strong interface interaction, high conductivity, and efficient charge separation ability.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Engineering, Environmental
Fang-Di Wu, Jyh-Cherng Chen, Jia-Peng Hu
Summary: A ternary composite photocatalyst TiO2/Ti3C2Tx/AgI with high catalytic activity was successfully synthesized using simple solvothermal and coprecipitation methods. This composite catalyst exhibited superior photocatalytic degradation activity for tetracycline hydrochloride (TCH) under simulated sunlight. The enhancement of photocatalytic activity can be attributed to the high conductivity and efficient transfer of photogenerated carriers facilitated by Ti3C2Tx and the Z-scheme heterojunction formed with non-metal Ti3C2Tx as the solid medium. Superoxide radicals, singlet oxygen, and holes were identified as the main active substances in the photocatalytic degradation process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Shanmugam Vignesh, Sharmila Chandrasekaran, Manickam Srinivasan, Radhakrishnan Anbarasan, Ramasamy Perumalsamy, Elangovan Arumugam, Mohd Shkir, H. Algarni, S. AlFaify
Summary: The g-C3N4/TiO2-CeO2 composite photocatalysts exhibit significantly improved photocatalytic performance, with a degradation efficiency of 97% for organic dyes, which is 6.1 to 2.6 times higher than traditional photocatalysts.
Article
Chemistry, Physical
Haohui Gu, Feng Liang, Xiaohan Wang, Shuaibing Wu, Gongye Lv, Haijun Zhang, Shaowei Zhang, Lilin Lu, Zhijun Dong
Summary: The synthesis of NT@CN core/shell structure S-scheme heterojunction photocatalyst was achieved by uniformly growing graphitic carbon nitride (g-C3N4) on the surface of nitrogen-doped rutile TiO2 (NT) nanorods. The as-synthesized heterojunction with 55 wt% g-C3N4 showed the highest CO2 photoreduction activity (33.35 μmol g(-1) for CO) without additional cocatalysts or external sacrificial agents, which was 7.1 times higher than that of bare NT nanorods. This improvement was attributed to the large surface area and impactful S-scheme heterostructure, enabling sufficient visible-light harvesting ability, segregation and transformation of charge pairs, and enhanced redox ability of carriers. Furthermore, the NT@CN photocatalyst displayed excellent reusability and stability. This work provides a new foundation for designing and preparing rutile TiO2-based S-scheme heterojunctions with enhanced CO2 reduction performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)