%A Ong,Wee-Jun %D 2017 %J Frontiers in Materials %C %F %G English %K Graphitic carbon nitride (g-C3N4),photocatalysis,energy conversion,Environmental Remediation,2D/2D heterojunction,face-to-face interface %Q %R 10.3389/fmats.2017.00011 %W %L %M %P %7 %8 2017-April-12 %9 Review %+ Wee-Jun Ong,Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Innovis,Singapore,ongwj@imre.a-star.edu.sg %# %! 2D/2D graphitic carbon nitride (g-C3N4) heterojunction nanocomposites for photocatalysis %* %< %T 2D/2D Graphitic Carbon Nitride (g-C3N4) Heterojunction Nanocomposites for Photocatalysis: Why Does Face-to-Face Interface Matter? %U https://www.frontiersin.org/articles/10.3389/fmats.2017.00011 %V 4 %0 JOURNAL ARTICLE %@ 2296-8016 %X In recent years, two-dimensional (2D) graphitic carbon nitride (g-C3N4) has elicited interdisciplinary research fascination among the scientific communities due to its attractive properties such as appropriate band structures, visible-light absorption, and high chemical and thermal stability. At present, research aiming at engineering 2D g-C3N4 photocatalysts at an atomic and molecular level in conquering the global energy demand and environmental pollution has been thriving. In this review, the cutting-edge research progress on the 2D/2D g-C3N4-based hybrid nanoarchitectures will be systematically highlighted with a specific emphasis on a multitude of photocatalytic applications, not only in waste degradation for pollution alleviation, but also in renewable energy production [e.g., water splitting and carbon dioxide (CO2) reduction]. By reviewing the substantial developments on this hot research platform, it is envisioned that the review will shed light and pave a new prospect for constructing high photocatalytic performance of 2D/2D g-C3N4-based system, which could also be extended to other related energy fields, namely solar cells, supercapacitors, and electrocatalysis.