J. Appl. Cryst.の発刊に際して

Hydrogen peroxide (H2 O2 ) has received increasing attention because it is not only a mild and environmentally friendly oxidant for organic synthesis and environmental remediation but also a promising new liquid fuel. The production of H2 O2 by photocatalysis is a sustainable process, since it uses water and oxygen as the source materials and solar light as the energy. Encouraging processes have been developed in the last decade for the photocatalytic production of H2 O2 . In this Review we summarize research progress in the development of processes for the photocatalytic production of H2 O2 . After a brief introduction emphasizing the superiorities of the photocatalytic generation of H2 O2 , the basic principles of establishing an efficient photocatalytic system for generating H2 O2 are discussed, highlighting the advanced photocatalysts used. This Review is concluded by a brief summary and outlook for future advances in this emerging research field.

Production of Hydrogen Peroxide by Photocatalytic Processes

An efficient metal-free phosphorus and oxygen co-doped g-C3N4 photocatalyst with enhanced visible light photocatalytic activity for the degradation of fluoroquinolone antibiotics

A review on the chemistry, coordination, structure and biological properties of 1-(acyl/aroyl)-3-(substituted) thioureas

The photocatalytic reduction of U(VI) into U(IV) by ZIF-8/g-C3N4 composites at visible light

For the first time, the bio-templated porous microtubular C-doped (BTPMC) g-C3N4 with tunable band structure was successfully prepared by simple thermal condensation approach using urea as precursors and kapok fibre which provides a dual function as a bio-templates and in-situ carbon dopant. Prior to the thermal condensation process, the impregnation strategies (i.e. direct wet and hydrothermal impregnation) of urea on the treated kapok fibre (t-KF) were compared to obtained well-constructed bio-templated porous microtubular C-doped g-C3N4. The details on a physicochemical characteristic of the fabricated samples were comprehensively analyze using X-ray diffraction (XRD), Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), Field-emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), N2 adsorption-desorption, Thermogravimetric (TGA), and UV–vis spectroscopy. Our finding indicated that the hydrothermal impregnation strategy resulted in well-constructed microtubular structure and more carbon substitution in sp2-hybridized nitrogen atoms of g-C3N4 as compared to the direct wet impregnation. Also, compared to pure g-C3N4, the fabricated BTPMC g-C3N4 exhibited extended photoresponse from the ultraviolet (UV) to visible and near-infrared regions and narrower bandgap. The bandgap easily tuned with the increased t-KF loading in urea precursor which responsible for in-situ carbon doping. Moreover, as compared to pristine g-C3N4, dramatic suppression of charge recombination of the BTPMC g-C3N4 was confirmed through photoluminescence, photocurrent response, and electrochemical impedance spectroscopy. The resultants BTPMC g-C3N4 possesses more stable structure, promoted charge separation, and suitable energy levels of conduction and valence bands for photocatalysis application.

Constructing bio-templated 3D porous microtubular C-doped g-C3N4 with tunable band structure and enhanced charge carrier separation

The 2-bromo-benzoyl group in the title compound, C(22)H(19)BrN(2)OS, adopts an E conformation with respect to the thiono S atom across the N-C bond. In the crystal structure, the mol-ecule is stablized by N-H⋯O inter-molecular hydrogen bonds, forming a one-dimensional chain along the b axis.

2-Bromo-N-(dibenzyl-carbamothioyl)benzamide.

In the title compound, C22H19FN2OS, the 2-fluoro­benzoyl group adopts a trans conformation with respect to the thiono S atom across the N—C bond In the crystal, inter­molecular N—H⋯S, C—H⋯S and C—H⋯O hydrogen bonds link the mol­ecules, forming a two-dimensional network parallel to (101)

https://journals.iucr.org/e/issues/2011/08/00/dn2702/dn2702.pdf

1,1-Dibenzyl-3-(4-fluoro-benzo-yl)thio-urea.

In the title compound, C22H19ClN2OS, the thiono and carbonyl groups are trans positioned with respect to a partially double C—N bond. The amide group is twisted relative to the thio­urea fragment, forming a dihedral angle of 46.75 (11)°. In the crystal, inter­molecular N—H⋯S and C—H⋯O hydrogen bonds link the mol­ecules into a one-dimensional polymeric structure parallel to the c axis.

https://journals.iucr.org/e/issues/2011/07/00/gk2383/gk2383.pdf

1,1-Dibenzyl-3-(3-chloro-benzo-yl)thio-urea.

The thiono and carbonyl groups in the title compound, C21H18N2O2S, adopt an anti disposition with respect to the central C—N bond. The diphenyl­amine rings are twisted relative to each other by a dihedral angle of 82.55 (10)°. The 3-meth­oxy­benzoyl fragment is twisted relative to one of the diphenyl­amine rings, forming a dihedral angle of 74.04 (9)°. In the crystal, pairs of inter­molecular N—H⋯S hydrogen bonds link the mol­ecules into centrosymmetric dimers, forming columns parallel to the a axis.

https://journals.iucr.org/e/issues/2011/08/00/jh2306/jh2306.pdf

Mohd Faizal Md Nasir

Papers

Constructing bio-templated 3D porous microtubular C-doped g-C3N4 with tunable band structure and enhanced charge carrier separation

2-Bromo-N-(dibenzyl-carbamothioyl)benzamide.

1,1-Dibenzyl-3-(4-fluoro-benzo-yl)thio-urea.

1,1-Dibenzyl-3-(3-chloro-benzo-yl)thio-urea.

3-(3-Methoxybenzoyl)-1,1-diphenylthiourea

Mohd Faizal Md Nasir

Papers

Constructing bio-templated 3D porous microtubular C-doped g-C3N4 with tunable band structure and enhanced charge carrier separation

2-Bromo-N-(dibenzyl-carbamothioyl)benzamide.

1,1-Dibenzyl-3-(4-fluoro-benzo-yl)thio-urea.

1,1-Dibenzyl-3-(3-chloro-benzo-yl)thio-urea.

3-(3-Meth­oxy­benzo­yl)-1,1-diphenyl­thio­urea

3-(3-Methoxybenzoyl)-1,1-diphenylthiourea