Article
Chemistry, Inorganic & Nuclear
Peng Wang, Mengxiang Gan, Puhui Deng, Yongfen Xu, Yu Hou
Summary: Phosphotungstic acid-loaded zirconium dioxide (HPW@ZrO2) nanoparticles with excellent oxidative desulfurization performance were prepared and characterized. The material showed efficient removal of DBT from simulated oil and maintained good recyclability after multiple cycles. Additionally, it exhibited good desulfurization performance for gasoline as well.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Josefa Ortiz-Bustos, Yolanda Perez, Isabel del Hierro
Summary: The polyoxometalate-based heterogeneous catalysts were successfully immobilized on hybrid mesoporous silica nanoparticles with a choline hydroxide based ionic liquid through a simple acid-base reaction. These catalysts showed effective oxidative desulfurization performance in model oil, achieving complete sulfur removal (99.7%) after 2 hours using H2O2 as an oxidant on silica support. Further studies revealed the formation of specific moieties on the silica materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Antony Rajendran, Hong-Xia Fan, Tian-You Cui, Jie Feng, Wen-Ying Li
Summary: This study reported a novel preparation method for oxidative desulfurization catalysts, which involves the hydrothermal synthesis of mesoporous tin oxide-supported octamolybdates and exhibits higher turnover frequency in the oxidative desulfurization reaction. This catalytic system shows promise in contributing to the establishment of an SOx-free environment.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Hui Liu, Jing He, Kun Zhu, Dongao Zhu, Linhua Zhu, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: This study developed a cobalt-doped mesoporous molecular sieve grafted with N,N-dihydroxypyromellitimide catalyst for catalytic oxidative desulfurization in diesel fuels. The integration of organic active components and porous supports enhanced the synergistic catalytic effect, resulting in improved selective oxidation of sulfides to sulfone derivatives.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Simin Zhang, Nan Liu, Hongwei Wang, Qichen Lu, Wenxiong Shi, Xun Wang
Summary: This study presents a facile method for synthesizing ZrO2-PMoO (PMZ) SNBs and TiO2-PMoO (PMT) SNBs with heterostructures, which demonstrate high catalytic activity and stability in oxidative desulfurization reactions. The combination of POM nanoclusters and ZrO2/TiO2 enhances the catalytic performance of the SNBs.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Xiaoxiao Sun, Dandan Dong, Xiuwen Qiao, Minmin Liu
Summary: Hierarchical N-decorated porous carbons (N-C) were synthesized using N-rich metal-organic framework ZIF-8 as a precursor and dicyandiamide as the secondary nitrogen sources. The synthesized N-C materials showed remarkable adsorption desulfurization capacities. Particularly, the N-C-0.2 sample exhibited high surface areas and a large number of micropores, facilitating rapid mass transfer of organic sulfide molecules. Furthermore, the presence of predominantly excellent graphitic nitrogen content in the N-C materials provided enriched active sites, thereby improving the adsorption desulfurization performance.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Shuyan Ma, Wenjing Bao, Boxu Liu, Cong Zhang, Chongze Wang, Yang Liu, Hailing Guo, Yuan Pan, Daofeng Sun, Yukun Lu
Summary: A highly efficient and stable catalyst for oxidative desulfurization was synthesized, which exhibited a hollow mesoporous structure and amphiphilicity. This catalyst showed improved catalytic performance and recyclability.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Tianqing Zhou, Shaoze Wang, Chaojian Zhang, Yue Yao, Yanyan Chen, Shuxiang Lu, Xiaoyuan Liao
Summary: Improving catalysts' desulfurization capacity is crucial for environmental protection. NH2-MIL-125 material, a MOF material with good adsorption properties, was prepared using a hydrothermal method. The dried materials at different temperatures were analyzed using XRD, FT-IR, SEM, and physical adsorption. Experiment results showed that NH2-MIL-125@150 degrees C had the highest desulfurization capacity, followed by NH2-MIL-125@200 degrees C and NH2-MIL-125@250 degrees C, while NH2-MIL-125@110 degrees C had the lowest capacity.
Article
Environmental Sciences
Heba H. El-Maghrabi, Rasha S. Mohamed, Ahmed A. Younes
Summary: The study describes a novel method of incorporating sulfonic acid groups onto mesoporous silica surface and evaluates its desulfurization efficiency. The prepared adsorbent showed high adsorption capacity for DBT and the desulfurization process was found to be spontaneous and exothermic.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Heba M. Salem, Asmaa A. Abdelrahman
Summary: Due to stricter environmental requirements, wide desulfurization has become crucial for obtaining ultra-clean fuels with low sulfur content for transportation purposes. In this study, a novel composite catalyst of [(FeW9O34)2 Fe4(H2O)2]-10 Fe6W18O70 cluster incorporated zirconium ferrite (ZrFe2O5) was developed to effectively remove sulfur. The structural properties of the catalyst were examined using various techniques, and Ultrasound assisted oxidative desulfurization (UAODS) processes were carried out to evaluate its performance. The catalyst Fe6W18O70@ZrFe2O5 achieved a sulfur removal rate of 98.2% within 40 minutes and could be regenerated multiple times without loss of activity. The reaction mechanism of the UAODS process was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaoxiao Sun, Ningrui Zhou, Minmin Liu
Summary: The ZIF/AC materials were prepared by loading trace amounts of ZIF-67 onto commercial activated carbon and calcining at different temperatures. The Co/AC-800 material showed highly dispersed Co and N on its surface, which contributed to its superior adsorption desulfurization performance for DBT compared to the two matrix materials. The acid-base interaction and π-π interaction were identified as the main factors, supported by quasi-second-order kinetics and Langmuir model analysis.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Energy & Fuels
Qing Liu, Ting Su, Haowei Zhang, Weiping Liao, Wanzhong Ren, Zhiguo Zhu, Kaixuan Yang, Christophe Len, Jia Yu, Deyang Zhao, Hongying Lu
Summary: Photocatalytic oxidative desulfurization (PODS) is a promising method for removing sulfur compounds. By designing a polyoxometalate-modified TiO2 nanomaterial and using visible light irradiation with H2O2, 100% sulfur removal can be achieved in 30 minutes.
Article
Engineering, Environmental
Youwei Sun, Wenyu Long, Jian Zhang, Yanjuan Wang, Shaozheng Hu, Yixin Lian, Weizhou Jiao, Ruixin Wang, Yazhou Zhang, Haiqiang Lin, Xinping Duan
Summary: The interfacial wettability and electronic modulation of catalysts can be effectively controlled through surface treatments, improving catalytic performance. This study presents a green oxidative desulfurization (ODS) system using a modular ionic liquid trigger and anchored catalyst. The catalyst exhibits high activity and stability for deep oxidation of C-S bonds, and the adsorption and pre-activation of C-S bonds on the hydrophilic surface are crucial for the ODS reaction. The study also suggests a possible mechanism involving electron transfer and reactive centers.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hanxiang Chen, Shuting Hou, Haoyuan Cui, Chao Wang, Ming Zhang, Hongping Li, Hui Xu, Jiqing Wu, Wenshuai Zhu
Summary: The interfacial properties and active site distribution of catalysts have a significant impact on catalytic oxidative desulfurization activity, which has been a research focus in recent years. In this study, an amphiphilic and polyoxometalate poly(ionic liquids) were prepared through cross-linking copolymerization and ion exchange reaction for desulfurization in fuel. The resulting sample, p-C2VIM-DVB-2-PMo, exhibited enhanced desulfurization performance and good thermal stability, meeting the requirements for deep desulfurization. Density functional theory calculations were also utilized to investigate the adsorption strength and interaction nature between the cation and sulfide compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Vladislav Gorbunov, Aleksey Buryak, Kirill Oskolok, Andrey G. Popov, Irina Tarkhanova
Summary: In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids were obtained. These compositions were characterized and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H2O2. The acidity change is non-linearly influenced by the amount of heteropolyacid (HPA), and the removal of sulfur-containing compounds is correlated with the concentration of Bronsted acid sites on the catalyst surface. On the other hand, the removal of pyridine is primarily determined by the content of heteropolyacids in the catalyst.
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)