Construction of novel three dimensionally ordered macroporous carbon nitride for highly efficient photocatalytic activity

Lin, Bo; Yang, Guidong; Yang, Bolun; Zhao, Yuxin

doi:10.1016/j.apcatb.2016.05.069

Cited by 153 publications

(66 citation statements)

References 42 publications

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“…Preparation of 3DOM g-C 3 N 4 [17,20] The powders of close-packed silica nanospheres (10.00g) and cyanamide (4.50g) were heated to 60°C for 30 min to allow filling of the interparticle voids of close-packed silica nanospheres with molten cyanamide. The mixture of close-packed silica nanospheres and cyanamide was cooled to room temperature.…”

Section: Chemicalsmentioning

confidence: 99%

“…The 3DOM g-C 3 N 4 with interconnected macroporous architecture and larger amounts of -NH 2 groups than those of lamellar g-C 3 N 4 ( Fig. S1) have been prepared by the thermal condensation-assisted colloidal crystal template method [17]. As shown in Fig.…”

Section: Covalent Combination Of Pw 11 and 3dom G-c 3 Nmentioning

confidence: 99%

“…However, the amounts of -NH 2 groups on the lamellar g-C 3 N 4 are quite small and the π-π conjugated electronic system of g-C 3 N 4 decreases the reactivity of -NH 2 groups, which makes the reaction between the lamellar g-C 3 N 4 and the organic linker difficult under mild conditions [16]. To overcome the above obstacles, three dimensionally ordered macroporous (3DOM) g-C 3 N 4 with interconnected macroporous architecture and large amounts of -NH 2 groups have been prepared by the thermal condensation-assisted colloidal crystal template method [17]. Therefore, the organosilicon agent of (triethoxysilyl)-propyl isocyanate can act as the linker to covalent combine the PW 11 cluster with 3DOM g-C 3 N 4 .…”

Section: Introductionmentioning

confidence: 99%

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Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

et al. 2017

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A B S T R A C TThe polyoxometalate (POM) cluster of [PW 11 O 39 ] 7-(PW 11 ) has been successfully covalent combined with the three dimensionally ordered macroporous graphitic carbon nitride (3DOM g-C 3 N 4 ) through the organic linker strategy. The characterization such as solid-state NMR and XPS results confirm the organosilicon agent of (triethoxysilyl)-propyl isocyanate can act as the linker to covalent combine the PW 11 cluster with 3DOM g-C 3 N 4 . The hybrid catalyst of 3DOM g-C 3 N 4 -PW 11 exhibits efficient catalytic performance (2.4 μmol h −1 ) for lightdriven H 2 O 2 production from H 2 O and O 2 in the absence of organic electron donors. The ESR results suggest that one-electron reduction of O 2 to •OOH is indeed suppressed over 3DOM g-C 3 N 4 -PW 11 . Furthermore, the Koutecky-Levich plot obtained from electrochemical rotating disk electrode (RDE) analysis of oxygen reduction reaction (ORR) for 3DOM g-C 3 N 4 -PW 11 reveals the value of electron transfer during the ORR process is 2.30, indicating the covalent combination can promote the two-electron O 2 reduction. In addition, the recycle experiment results reveal that the heterogeneous 3DOM g-C 3 N 4 -PW 11 is catalytic stable.

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Section: Chemicalsmentioning

confidence: 99%

Section: Covalent Combination Of Pw 11 and 3dom G-c 3 Nmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

et al. 2017

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“…KIT-6 disintesis dari campuran triblok kopolimer-butanol sebagai agen pengarah struktur menghasilkan silika mesopori tipe batang dan tabung dengan simetri kubus Ia3d [16], [7], [10], [34] CKT-1 semi heksagonal [88] CKT-2 disorder cubic [89] C-125 semi batang inner-outer [90] CMM semi sangkar pori ganda [91] CSS Seminkubus [92] CP-1 sangkar kubus [93] OMCG sangkar semi kubus [94] Ada dua macam teknik sintesis karbon mesopori yaitu cetakan padat dan cetakan lunak. Cetakan padat menggunakan padatan berpori sebagai tempat pengendapan prekursor karbon [20], [77], [78], [57], [61], [79], [80], sedangkan cetakan lunak menggunakan surfaktan sebagai agen pengarah struktur [25], [59], [67], [70], [81]- [86]. Kedua teknik tersebut menghasilkan beragam struktur karbon mesopori terutama di 25 tahun terakhir.…”

Section: Perkembangan Prekursor Karbon Mesoporiunclassified

Mesoporous Carbon in the Global World

Ulfa

2017

JKPK

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Selama 25 tahun terakhir, fokus penelitian material bergeser ke arah nanomaterial.Material berbasis karbon khususnya jenis karbon mesopori menarik perhatian banyak peneliti karena faktor keteraturan struktur dan sifat fisika-kimia yang bagus. Keterlibatan karbon mesopori cukup besar dalam dunia khususnya industri karena faktor porositas dan regularitas struktur yang baik untuk reaksi-reaksi skala makro. Dalam 25 tahun terakhir topik utama penelitian karbon mesopori fokus untuk menghasilkan material tiga dimensi yang mempu mengakomodir mekanisme reaksi yang melibatkan molekul besa dengan memperhatikan aspek preparasi, sintesis dan aplikasinya. Review ini akan mengkaji perkembangan kabon mesopori antara tahun 1999 hingga 2017. Kajian akan difokuskan pada perkembangan karbon mesopori dari sisi prekursor, metode sintesis, serta aplikasinya dalam dunia modern baik sebagai adsorben, katalis maupun material canggih lainnya.

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“…[3][4][5] However, traditional TiO 2 materials majorly suffer from three serious problems: (1) a wide band gap of 3.0-3.2 eV, absorbing ultraviolet light (UV light), which occupies only 3%-5% of the incoming solar energy; [6,7] (2) the rapid recombination of photogenerated electron-hole pairs, which can extremely reduce the photo quantum efficiency of TiO 2 ; (3) low specific surface area, which results in great contact deficiency with pollutant molecules. [8][9][10][11][12] Recently, Zhao et al prepared radially oriented TiO 2 mesoporous microspheres with single-crystal-like anatase channel walls via a facile evaporation-driven oriented assembly method (EDOA), which exhibited excellent photocatalytic activity because of their high specific surface area with primary ca. 5.7 nm pore size and single-crystal-like anatase channel walls with dominant (101) exposed facets, beneficial for conducting charges and anchoring small molecules.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Au Decorated Single‐crystal‐like TiO₂‐NaYF₄ Mesoporous Microspheres for Enhanced Broadband Photocatalysis

et al. 2017

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Single-crystal-like TiO 2 mesoporous microspheres have been reported with high photocatalytic activity under ultraviolet light (UV light) because of their high specific surface areas and single-crystal-like channel walls. In this work, plasmonic gold nanoparticles (Au NPs) and β-NaYF 4 : Yb 3＋ , Er 3＋ upconversion nanoparticles (UCNPs) were composited with single-crystal-like TiO 2 mesoporous microspheres through a series of facile approaches, aiming at broadening response region of solar light from UV to visible and near infrared light and enhancing the photocatalytic activity further. The structure was rationally designed by modifying the pore size of TiO 2 mesoporous microspheres so as to anchor plasmonic Au NPs, and covering β-NaYF 4 : Yb 3＋ , Er 3＋ with SiO 2 in order to embed UCNPs into TiO 2 mesoporous microspheres via hydrophilic interaction. This work studied the attribution of Au NPs and UCNPs to photocatalysis and found out that combining Au NPs and certain amount of UCNPs with single-crystallike TiO 2 mesoporous microspheres in a monolithic architecture would bring enhanced broadband photocatalytic activity under simulated solar light. Consequently, the composite photocatalyts containing 150 mg UCNPs showed a significant enhancement in reaction rate, which was 36.02% higher than commercial P25 and 85.09% higher than pure TiO 2 mesoporous microspheres under simulated solar light.

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Construction of novel three dimensionally ordered macroporous carbon nitride for highly efficient photocatalytic activity

Cited by 153 publications

References 42 publications

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Mesoporous Carbon in the Global World

Plasmonic Au Decorated Single‐crystal‐like TiO₂‐NaYF₄ Mesoporous Microspheres for Enhanced Broadband Photocatalysis

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Construction of novel three dimensionally ordered macroporous carbon nitride for highly efficient photocatalytic activity

Cited by 153 publications

References 42 publications

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Mesoporous Carbon in the Global World

Plasmonic Au Decorated Single‐crystal‐like TiO2‐NaYF4 Mesoporous Microspheres for Enhanced Broadband Photocatalysis

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Plasmonic Au Decorated Single‐crystal‐like TiO₂‐NaYF₄ Mesoporous Microspheres for Enhanced Broadband Photocatalysis