scholarly journals Hexagonal boron nitride: A metal-free catalyst for deep oxidative desulfurization of fuel oils

2020 ◽  
Vol 5 (2) ◽  
pp. 166-172 ◽  
Author(s):  
Peiwen Wu ◽  
Linjie Lu ◽  
Jing He ◽  
Linlin Chen ◽  
Yanhong Chao ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Oxidative Desulfurization ◽  
Metal Free ◽  
Fuel Oils

Boron and Nitride Dual vacancies on Metal‐Free Oxygen Doping Boron Nitride as Initiating Sites for Deep Aerobic Oxidative Desulfurization

ChemCatChem ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1734-1742 ◽  
Author(s):  
Li Dai ◽  
Yanchen Wei ◽  
Xinyuan Xu ◽  
Peiwen Wu ◽  
Ming Zhang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Oxidative Desulfurization ◽  
Oxygen Doping ◽  
Free Oxygen ◽  
Metal Free

scholarly journals Phosphomolybdic acid immobilized on ionic liquid-modified hexagonal boron nitride for oxidative desulfurization of fuel

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54266-54276 ◽  
Author(s):  
Haiyan Ji ◽  
Haitao Ju ◽  
Rong Lan ◽  
Peiwen Wu ◽  
Jia Sun ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Oxidative Desulfurization ◽  
Supported Catalyst ◽  
Phosphomolybdic Acid ◽  
Catalytic Performance ◽  
Catalytic Oxidative Desulfurization ◽  
Enhanced Stability ◽  
Excellent Catalytic Performance

An ionic liquid modified hexagonal boron nitride was developed for preparation of a supported catalyst with enhanced stability and excellent catalytic performance in catalytic oxidative desulfurization.

Can metal-free silicon-doped hexagonal boron nitride nanosheets and nanotubes exhibit activity toward CO oxidation?

2015 ◽  
Vol 17 (2) ◽  
pp. 888-895 ◽  
Author(s):  
Sen Lin ◽  
Xinxin Ye ◽  
Jing Huang
Keyword(s):  
Boron Nitride ◽  
Co Oxidation ◽  
Hexagonal Boron Nitride ◽  
First Principle ◽  
Metal Free ◽  
Boron Nitride Nanosheets ◽  
Free Silicon ◽  
Si Doped ◽  
Silicon Doped

Si-doped hexagonal boron nitride nanosheets and nanotubes have been investigated by first-principle methods.

Taming electronic properties of boron nitride nanosheets as metal-free catalysts for aerobic oxidative desulfurization of fuels

2018 ◽  
Vol 20 (19) ◽  
pp. 4453-4460 ◽  
Author(s):  
Linjie Lu ◽  
Jing He ◽  
Peiwen Wu ◽  
Yingcheng Wu ◽  
Yanhong Chao ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Electronic Properties ◽  
Oxidative Desulfurization ◽  
Catalytic Performance ◽  
Metal Free ◽  
Boron Nitride Nanosheets ◽  
The Matrix

Electronic properties of boron nitride nanosheets were tamed by doping carbon atoms into the matrix for boosted aerobic catalytic performance.

scholarly journals Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Liang Cheng Chien ◽  
Chen Wei Chiang ◽  
Chou Chio Lao ◽  
Yung-I Lin ◽  
Hao-Wu Lin ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Guanidine Hydrochloride ◽  
Layered Structures ◽  
Graphene Oxides ◽  
Metal Free ◽  
Doped Graphene ◽  
Boron Carbon

AbstractBoron-based nanomaterials are emerging as non-toxic, earth-abundant (photo)electrocatalyst materials in solar energy conversion for the production of solar hydrogen fuel and environmental remediation. Boron carbon oxynitride (BCNO) is a quaternary semiconductor with electronic, optical, and physicochemical properties that can be tuned by varying the composition of boron, nitrogen, carbon, and oxygen. However, the relationship between BCNO's structure and -photocatalytic activity relationship has yet to be explored. We performed an in-depth spectroscopic analysis to elucidate the effect of using two different nitrogen precursors and the effect of annealing temperatures in the preparation of BCNO. BCNO nanodisks (D = 6.7 ± 1.1 nm) with turbostratic boron nitride diffraction patterns were prepared using guanidine hydrochloride as the nitrogen source precursor upon thermal annealing at 800°C. The X-ray photoelectron spectroscopy (XPS) surface elemental analysis of the BCNO nanodisks revealed the B, C, N, and O compositions to be 40.6%, 7.95%, 37.7%, and 13.8%, respectively. According to the solid-state 11B NMR analyses, the guanidine hydrochloride-derived BCNO nanodisks showed the formation of various tricoordinate BNx(OH)3−x species, which also served as one of the photocatalytic active sites. The XRD and in-depth spectroscopic analyses corroborated the preparation of BCNO-doped hexagonal boron nitride nanodisks. In contrast, the BCNO annealed at 600 °C using melamine as the nitrogen precursor consisted of layered nanosheets composed of B, C, N, and O atoms covalently bonded in a honeycomb lattice as evidence by the XRD, XPS, and solid-state NMR analysis (11B and 13C) analyses. The XPS surface elemental composition of the melamine-derived BCNO layered structures consisted of a high carbon composition (75.1%) with a relatively low boron (5.24%) and nitrogen (7.27%) composition, which indicated the formation of BCNO-doped graphene oxides layered sheet structures. This series of melamine-derived BCNO-doped graphene oxide layered structures were found to exhibit the highest photocatalytic activity, exceeding the photocatalytic activity of graphitic carbon nitride. In this layered structure, the formation of the tetracoordinate BNx(OH)3−x(CO) species and the rich graphitic domains were proposed to play an important role in the photocatalytic activity of the BCNO-doped graphene oxides layered structures. The optical band gap energies were measured to be 5.7 eV and 4.2 eV for BCNO-doped hexagonal boron nitride nanodisks and BCNO-doped graphene oxides layered structures, respectively. Finally, BCNO exhibited an ultralong photoluminescence with an average decay lifetime of 1.58, 2.10, 5.18, and 8.14 µs for BGH01, BGH03, BMH01, BMH03, respectively. This study provides a novel metal-free photocatalytic system and provides the first structural analysis regarding the origin of BCNO-based photocatalyst. Graphical Abstract

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