2024, Vol.34, No.4

Customized carbon composite nanomaterials for the mitigation of emerging contaminants: a review of recent trends

Balakumar S. , Mahesh N. , Kamaraj M. and 5 other persons | 2024, 34(4) | pp.1091~1114 | number of Cited : 0

High efficiency of boron doping and fast growth realized with a novel gas inlet structure in diamond microwave plasma chemical vapor deposition system

Teng Yan , Zhao Weikang , Tang Kun and 5 other persons | 2024, 34(4) | pp.1115~1128 | number of Cited : 0

Comparative study between micro- and nano-carbon with epoxy for gamma shielding applications

Gouda Mona M. , El-Khatib Ahmed M. , Khalil Mona M. and 2 other persons | 2024, 34(4) | pp.1129~1141 | number of Cited : 0

In the current study, the epoxy material was mixed with 10%, and 30% weight percent carbon material as filler in different thicknesses (1 cm, 1.5 cm, and 2 cm). Transmission electron microscope (TEM) measurements showed the average size of the nano-carbon was 20 nm with a standard deviation of 5 nm. The morphology of samples was examined using scanning electron microscopy (SEM), which showed the flatness of the epoxy surface, and when the content of carbon increases, the connection between the epoxy array and carbon increases. The compression test indicates the effect of nano-size on enhancing the mechanical properties of the studied samples. To survey the shielding properties of the epoxy/carbon composites using gamma-rays emitted from Am-241, Ba-133, Cs-137, Co-60, and Eu-152 sources, which covered a wide range of energies from 0.059 up to 1.408 MeV, the gamma intensity was measured using the NaI (Tl) detector. The linear and mass attenuation coefficients were calculated by obtaining the area under each peak of the energy spectrum observed from Genie 2000 software in the presence and absence of the sample. The experimental results obtained were compared theoretically with XCOM software. The comparison examined the validity of experimental results where the relative division rate ranged between 0.02 and 2%. Also, the measurement of the relative division rate between linear attenuation coefficients of micro- and nano-composites was found to range from 0.9 to 21% The other shielding parameters are calculated at the same range of energy, such as a half-value layer (HVL), mean free path (MFP), tenth-value layer (TVL), effective atomic number (Zeff), and the buildup factors (EBF and EABF). The data revealed a consistent reduction in the particle size of the shielding material across various weight percentages, resulting in enhanced radiation shielding capabilities. The sample that contains 30% nano-carbon has the lowest values of TVL (29.4 cm) and HVL (8.85 cm); moreover, it has the highest value of the linear attenuation coefficient (LAC), which makes it the best in its ability to attenuate radiation.

Interface engineering enhanced g-C3N4/rGO/Pd composites synergetic localized surface plasmon resonance effect for boosting photocatalytic CO2 reduction

Wan Yang , Liu Qi , Xu Zenghui and 9 other persons | 2024, 34(4) | pp.1143~1154 | number of Cited : 0

The fluorescent and colorimetric dual-response sensor based on carbon dots doped with nitrogen and sulfur for detecting copper ions

Zhang Mengxue , Yin Hongna , Wan Libin and 3 other persons | 2024, 34(4) | pp.1155~1164 | number of Cited : 0

Dual heteroatoms doped nanocarbons: electrocatalysts for hydrogen peroxide synthesis

Prasad K. Sudhakara , Naveen M. H. , Manisha H. and 3 other persons | 2024, 34(4) | pp.1165~1171 | number of Cited : 0

Facile synthesis of laser-induced graphene oxide and its humidity sensing properties

An Jin Woo , Hyeong Seok-Ki , Kim Kang Min and 5 other persons | 2024, 34(4) | pp.1173~1185 | number of Cited : 0

CNT–PDMS film-based flexion sensor for examining physical activity in humans

Elizabeth Indu , Athira C. , Paul Sharon J. and 1 other persons | 2024, 34(4) | pp.1187~1195 | number of Cited : 0

Facile synthesis of Ni-based oxides nanocatalyst: effect of calcination temperature on NRR properties of NiO

Huang Xiaoyan , Xing Xiujing , Xiong Wei and 1 other persons | 2024, 34(4) | pp.1197~1206 | number of Cited : 0

Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite

Akhil Syed , Kumar Porala Jayanth , Mosali Venkata Sai Sriram and 7 other persons | 2024, 34(4) | pp.1207~1218 | number of Cited : 0

Revealing the effect of graphite source on the properties of synthesized graphene oxide

Ioni Yulia , Khamidullin Timur , Sapkov Ivan and 2 other persons | 2024, 34(4) | pp.1219~1228 | number of Cited : 0

Hierarchically porous polyaromatic carbon spheres decorated NiMn2O4 nanocomposite: efficient selective azo dye degradation from aqueous water and reduction of p-nitrophenol to p-aminophenol

Ioni Yulia , Kaliraja T. , Lakkaboyana Sivarama Krishna and 2 other persons | 2024, 34(4) | pp.1229~1237 | number of Cited : 0

Assessment of carbon nanotube sheet densification level

Çakmakçı Nilüfer , Yoo Byungkwon , Lee Hosin and 1 other persons | 2024, 34(4) | pp.1239~1245 | number of Cited : 0

High efficiency and flux separation of water-in-oil emulsions of superhydrophobic microporous carbon aerogels

Myeong Seongjae , Lim Chaehun , Ha Seongmin and 3 other persons | 2024, 34(4) | pp.1247~1257 | number of Cited : 0

Effect of metallic copper on the electrothermal properties of carbon nanofibers

Huang He-Dong , Pu Hao , Fan Jun-Wei and 5 other persons | 2024, 34(4) | pp.1259~1267 | number of Cited : 0

KJCKorea
Journal Central

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

2024, Vol.34, No.4