ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Shurui Xu,Guoyu Zhong,Linxin Qu,Zihao Liang,Tao Li,Yifei Yuan,Shaona Zheng,Wenbo Liao,Abdul Waqas Anjum,Xiaobo Fu,Jing Xiao
Selectively oxidizing alcohols to carbonyl compounds in an eco-friendly and sustainable way is of great importance. Instead of the noble catalytic system, we developed a novel catalytic system based on drilled carbon nanotubes (CNTs) assisted by Fe(NO3)3 that exhibits high activity for aerobic oxidation reactions. Interestingly, our studies demonstrated a direct relationship between the defects in the drilled CNTs and their activity. Catalytic evaluations revealed that the synergistic effect of drilled CNTs combined with Fe(NO3)3 resulted in unprecedented activity. The edge defects of the CNTs and electron transformation of Fe work synergistically to activate O2. Furthermore, the electronic transition from the drilled CNTs to Fe3+ confirmed the synergistic effect of the drilled CNTs/Fe(NO3)3. Thus, our studies not only demonstrate the use of drilled CNTs/Fe(NO3)3 in a sustainable catalytic system but also provide insight into the synergistic effect between these components for the universal oxidation of alcohols to carbonyl compounds.
研究领域:
化学
·
催化材料
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Canadian Journal of Chemistry
·
2018
·Vol. 96
·期 8
·
IF 1.084
Yongshu Li,Nizhou Xu,Guangyao Mei,Yun Zhao,Yiyong Zhao,Jinghui Lyu,Guofu Zhang,Chengrong Ding
A mild, simple process for the effective aerobic oxidative deoximation of a wide range of ketoximes and aldoximes has been developed that utilizes Fe(NO3)3·9H2O as the single catalyst and molecular oxygen as the green oxidant. The environmentally benign protocol provides moderate to excellent yield and broad functional groups tolerance and is a valuable synthetic method for practical applications. According the relevant verification experiment, a plausible mechanism has been proposed.
研究领域:
有机化学
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2014
·Vol. 4
·期 12
·4308-4312
·
IF 4.76
Ran Ma,Cheng-Bin Huang,An-Hua Liu,Xue-Dong Li,Liang-Nian He
An environmentally benign CO2/glycol reversible acidic system was developed for the iron(III)-catalyzed aerobic oxidative iodination of electron-rich aromatics without the need for any conventional acid additive or organic solvent. Notably, moderate to high isolated yields (up to 97%) of the aryl iodides were attained with comparable regioselectivity when ferric nitrate nonahydrate was used as the catalyst with molecular iodine under 1 MPa of CO2.
研究领域:
有机化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2023
·
IF 2.6
Shuyang Shi,Baozhong Ma,Shuang Shao,Yongqiang Chen,Chengyan Wang
An original technology named HNO3 pressure leaching has been proposed by our team to leach Al from coal gangue and fly ash. Although the preliminary separation of Al and Fe had been achieved during leaching, a small amount of Fe impurity was still unavoidably dissolved into the leach liquor. To obtain pure Al2O3 during subsequent pyrolysis, it is imperative to synchronously remove Fe3+ during the crystallization of Al(NO3)3·9H2O. Herein, the phase equilibria of the Al(NO3)3–Fe(NO3)3–H2O(−HNO3) system at 25–40 °C and 0–8.12 mol kg–1 of HNO3 molality were investigated. The results indicated that the ternary system was a simple cosaturated type consisting of an immutable point, two univariate curves, and two crystallization regions. Notably, the solubility and crystallization region of Al(NO3)3·9H2O were barely impacted by acidity, while the opposite was true for Fe(NO3)3·9H2O. This finding was instructive for the crystallization of Fe(NO3)3·9H2O from the liquor with high Fe and low Al. Moreover, a high crystallization yield could be obtained at low temperatures. Finally, an appropriate crystallization procedure was provided. This study is expected to provide basic data and theoretical support for the crystallization and separation of mixed nitrates containing Al and Fe.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Hui Yu,Xinyu Li,Chuanqi Geng,Xiaojia Wu,Fan Zhang,Shichao Tian,Zhiyong Zhou,Zhongqi Ren
The separation of aromatic and aliphatic hydrocarbons is one of the most challenging and energy-consuming operations in the petrochemical industry. In this study, a number of N -methylpyrrolidone (NMP)-based coordinated ionic liquids (ILs) with various metal salts were prepared and their separation performances were investigated. Among these coordinated ILs, NMP-0.1Fe(NO 3 ) 3 ·9H 2 O showed high selectivity and was used to separate toluene from n -heptane or cyclohexane. Fourier-transform infrared spectroscopy was used to verify that the synthesis of NMP-0.1Fe(NO 3 ) 3 ·9H 2 O was achieved. The toluene distribution coefficient and selectivity were 0.20 and greater than 70, respectively, for a 10 mol% toluene/ n -heptane system, and 0.20 and 23.5, respectively, for a 20 mol% toluene/cyclohexane system. Changing the extraction temperature had little effect on the separation performance. The effects of the solvent dosage, initial concentrations of system components, and regeneration times were also investigated. Experimental liquid–liquid equilibrium data for the studied ternary systems were correlated with the non-random two-liquid model. The results show that NMP-0.1Fe(NO 3 ) 3 ·9H 2 O has potential industrial applications.
研究领域:
化学工程
·
石油化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2023
·
IF 11.4
Zijing Guo,Xin Chen,Jiacheng Hang,Zhengzhang Li,Caihua Zhong,Ahui Sun,Jihui Li,Shuying Xu
A novel oxidative magnetization, involving phosphomolybdic acid and Fe(NO 3 ) 3 co-promoted pyrolysis, was established to manufacture highly adsorptive magnetic biochars for adsorbing aqueous tetracycline, methylene blue, and Cr 6+ . The modification of phosphomolybdic acid greatly boosted the formation of γ-Fe 2 O 3 and oxygen containing groups with enhancement of specific surface area and pore volume at 400 °C. Importantly, γ-Fe 2 O 3 was stably fixed on surface in quasi-nanoscale. The oxidized magnetic biochar displayed 631.53, 158.45, 155.13 mg/g adsorption capabilities for tetracycline, methylene blue, and Cr 6+ with 22.79 emu/g saturation magnetization, respectively. Oxygen containing groups and quasi-nanoscale γ-Fe 2 O 3 served as key adsorption sites for these pollutants. A general oxidative magnetization was established for manufacturing high-performance magnetic biochar through phosphomolybdic acid/Fe(NO 3 ) 3 co-promoted pyrolysis at relatively low temperature.
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）