Significant enhancement of surface area and structural distortion of carbon nitride by recrystallization method

Ullah，Wajid1; Aziz，Tariq2; Ali，Amjad3; Khan，Zaheen Ullah4; Das，Sandeep Kumar1; Iqbal，Mudassir1; Ullah，Roh5; Wazir，Nasrullah6; Khan，Farman Ullah7; Raheel，Muhammad8

2022-07-01

10.1007/s10853-022-07460-w

JOURNAL OF MATERIALS SCIENCE   Impact Factor & Quartile

0022-2461

1573-4803

Solar photo-catalysis is very essential for both harvesting high-density solar energy, and environmental sustainability. A high surface area carbon nitride (HSACN), a photo-catalyst is synthesized by simple re-crystallization and calcination methods. The decrease in the size of urea crystals is ascribed to the use of different solvents and direct calcination that resulted in the formation of carbon nitride. The re-crystallization suggests that the defect-rich carbon nitride created nitrogen vacancies, which accelerated the photocatalytic activity of dyes’ degradation. The synthesized materials were characterized by X-ray powder diffraction, Field emission scanning electron microscopy, and transmission electron microscopy for structural and morphology evaluation. The corresponding high surface area carbon nitride demonstrated higher photocatalytic-dye-degradation efficiency under UV light irradiation, and higher adsorption capacity compared to graphitic carbon nitride, which is obtained without re-crystallization protocol. An increase in the surface area of HSACN has been observed due to structural disturbance caused by the growth of tiny urea crystals in carbon nitride. The nitrogen vacancies incorporation improved the absorption of extended visible light. The enhancement in photocatalytic activities are corresponding to the improved charge carrier photoexcitation, separation, and generated abundant reaction sites.

SCI ; EI

English

Others

WOS:000821368100002

20222812336210

Calcination ; Carbon nitride ; Field emission microscopes ; High resolution transmission electron microscopy ; Light ; Metabolism ; Morphology ; Nitrogen ; Photocatalytic activity ; Photodegradation ; Solar energy ; Sustainable development ; Urea

Solar Energy and Phenomena:657.1 ; Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85133647150

Scopus

1.Department of Polymer Science and Engineering,Zhejiang University,Hangzhou,310027,China
2.School of Chemical Engineering,Westlake University,Hangzhou,310024,China
3.Institute of Polymer Material,School of Material Science and Engineering,Jiangsu University,Zhenjiang,China
4.School of Environmental Science and Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
5.School of Chemistry and Chemical Engineering,Beijing Institute of Technology (BIT),Haidian,China
6.Beijing Key Lab of Nanophotonic and Ultrafine Optoelectronic System,School of Physics,Beijing Institute of Technology (BIT),Beijing,100081,China
7.Department of Chemistry,University of Science and Technology,Bannu,28000,Pakistan
8.Department of Chemistry,Baluchistan University of Information Technology,Engineering and Management Sciences (BUITEMS),Quetta,Airport Road, Baluchistan,87100,Pakistan

Ullah，Wajid,Aziz，Tariq,Ali，Amjad,et al. Significant enhancement of surface area and structural distortion of carbon nitride by recrystallization method[J]. JOURNAL OF MATERIALS SCIENCE,2022,57(27):12886-12893.

Ullah，Wajid.,Aziz，Tariq.,Ali，Amjad.,Khan，Zaheen Ullah.,Das，Sandeep Kumar.,...&Raheel，Muhammad.(2022).Significant enhancement of surface area and structural distortion of carbon nitride by recrystallization method.JOURNAL OF MATERIALS SCIENCE,57(27),12886-12893.

Ullah，Wajid,et al."Significant enhancement of surface area and structural distortion of carbon nitride by recrystallization method".JOURNAL OF MATERIALS SCIENCE 57.27(2022):12886-12893.