Potassium doped graphitic carbon nitride with extended optical absorbance for solar light driven photocatalysis

Synthesis and applications of graphitic carbon nitride (g-C3N4) based membranes for wastewater treatment: A critical review

“…In immobilized form, the 60% dye was decolorization in 90 min, whereas in slurry form, under ideal circumstances, the 93% dye was decolorization in 75 min [ 124 ]. B-doped g-C 3 N 4 and K-doped g-C 3 N 4 were synthesized by Tripathi et al and then integrated with zinc aluminum layered double hydroxide [ 129 , 131 ]. The consequent photocatalysts were attached on a glass plate to create a film-based tiltable plate reactor (TPR), which was subsequently used to degrade phenol from wastewater.…”

“…After 300 min of treatment, the K-doped g-C 3 N 4 in the TPR was able to degrade a maximum 89.06% of phenol. After 50 h of operation, the reactor was still able to decompose phenol at a rate of roughly 70% [ 129 , 131 ]. Similarly, Yazdani et al described a unique fixed-bed reactor made of glass covered with NiTi-LDH film and examined its MO degradation competence as shown in Fig.…”

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

“…Incorporation of a small alkali metal such as potassium in the heptazine-based cavity has also been found to improve visible absorption and photocatalytic performance. − Again, codoping with K and P can ameliorate the performance . Indeed, the aforementioned approaches improve the visible absorption profile of blue absorbing g-C 3 N 4 , but the problem of fast charge carrier recombination (inter and intrasheets) remains prevalent, resulting in a sluggish activity.…”

Boosting charge transfer in Au-decorated B/K co-doped CN nanosheets towards enhanced photocatalytic CO2 reduction

“…This phenomenon proves that heteroatoms B and K were successfully doped into the CN skeleton, disrupting the order of CN. 27,28 In Fig. S1 (ESI†), the (002) peak of BKCN is shifted to a smaller angle than that of CN, which indicates that the average interlayer distance of BKCN increased after B/K co-doping.…”