Journal ArticleDOI
Hydrogen Peroxide Synthesis: An Outlook beyond the Anthraquinone Process
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TLDR
The direct synthesis of H 2O2 from O2 and H2 using a variety of catalysts, and the factors influencing the formation and decomposition of H2O2 are examined in detail in this Review.Abstract:
Hydrogen peroxide (H2O2) is widely used in almost all industrial areas, particularly in the chemical industry and environmental protection. The only degradation product of its use is water, and thus it has played a large role in environmentally friendly methods in the chemical industry. Hydrogen peroxide is produced on an industrial scale by the anthraquinone oxidation (AO) process. However, this process can hardly be considered a green method. It involves the sequential hydrogenation and oxidation of an alkylanthraquinone precursor dissolved in a mixture of organic solvents followed by liquid–liquid extraction to recover H2O2. The AO process is a multistep method that requires significant energy input and generates waste, which has a negative effect on its sustainability and production costs. The transport, storage, and handling of bulk H2O2 involve hazards and escalating expenses. Thus, novel, cleaner methods for the production of H2O2 are being explored. The direct synthesis of H2O2 from O2 and H2 using a variety of catalysts, and the factors influencing the formation and decomposition of H2O2 are examined in detail in this Review.read more
Citations
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Highly selective photocatalytic production of H2O2 on sulfur and nitrogen co-doped graphene quantum dots tuned TiO2
Longhui Zheng,Hanrui Su,Jingzhen Zhang,Laxman S. Walekar,Hamed Vafaei Molamahmood,Baoxue Zhou,Mingce Long,Yun Hang Hu +7 more
TL;DR: In this article, the authors developed an efficient photocatalyst (SN-GQD/TiO2) for H2O2 syntheses by tuning TiO2 with sulfur and nitrogen co-doped graphene quantum dots (SNGQDs).
Journal ArticleDOI
Ultrathin g-C3N4 nanosheet with hierarchical pores and desirable energy band for highly efficient H2O2 production
Liang Zhou,Jianrui Feng,Bocheng Qiu,Yi Zhou,Juying Lei,Mingyang Xing,Lingzhi Wang,Yanbo Zhou,Yongdi Liu,Jinlong Zhang +9 more
TL;DR: In this paper, the authors reported ultrathin g-C3N4 nanosheets with hierarchical pores and desirable energy band for high-efficiency photocatalytic H2O2 production.
Journal ArticleDOI
Acetylene and Diacetylene Functionalized Covalent Triazine Frameworks as Metal-Free Photocatalysts for Hydrogen Peroxide Production: A New Two-Electron Water Oxidation Pathway.
TL;DR: It is shown that introducing acetylene or diacetylene moieties into covalent triazine frameworks (CTFs) can remarkably promote photocatalytic H2 O2 production, and this enhancement is inherent to the incorporated carbon-carbon triple bonds which are essential in modulating the electronic structures of CTFs and suppressing charge recombinations.
Journal ArticleDOI
Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production
TL;DR: In this article, the polyoxometalate (POM) cluster of [PW 11 O 39 ] 7- (PW11 ) has been successfully combined with the three dimensionally ordered graphitic carbon nitride (3DOM g-C 3 N 4 ) through the organic linker strategy.
Journal ArticleDOI
Recent Progress, Challenges, and Prospects in Two-Dimensional Photo-Catalyst Materials and Environmental Remediation
Karim Khan,Ayesha Khan Tareen,Muhammad Aslam,Rizwan Ur Rehman Sagar,Bin Zhang,Weichun Huang,Asif Mahmood,Nasir Mahmood,Kishwar Khan,Han Zhang,Zhongyi Guo +10 more
TL;DR: This broad review explains progress regarding 2DMs, significance in structure, and catalytic results and proposes approaches of diverse of two-dimensional photo-catalyst materials-based nanoplatforms, optimization strategies to enhance activity, and their diverse applications.
References
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Titanium dioxide photocatalysis
TL;DR: A review of the current progress in the area of TiO 2 photocatalysis, mainly photocatalytic air purification, sterilization and cancer therapy is discussed in this paper.
Titanium dioxide as photocatalysis
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TL;DR: A review of the current progress in the area of TiO 2 photocatalysis, mainly photocatalytic air purification, sterilization and cancer therapy is discussed in this article.
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Titanium-containing mesoporous molecular sieves for catalytic oxidation of aromatic compounds
TL;DR: The use of the templating approach to synthesize mesoporous silica-based molecular sieves partly substituted with titanium—large-pore analogues of titanium silicalite find that these materials show selective catalytic activity towards the oxidation of 2,6-ditert-butyl phenol to the corresponding quinone and the conversion of benzene to phenol.